Nailer



FIG. 1 is a top view of a nailer showing my new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a front view thereof, and;

FIG. 6 is a rear view thereof. 

The ornamental design for a nailer, as shown. 